What is Natroba: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 30, 2020

Natroba overview

BRAND NAMES:

  • Natroba

Generic Names:

  • Spinosad

Uses:

  • Treats head lice.

Therapeutic Classes:

  • Pediculicide

Forms:

  • Liquid

How it’s taken:

  • On the skin

What is Natroba used for?

What form(s) does Natroba come in

  • Liquid

What are common Natroba doses?

  • Bottle 120ML of 0.9%

Common Natroba prescriptions

  • Natroba
    120ml of 0.9% bottle

How to take Natroba

  • Use this medicine as directed on the hair and scalp only. Do not get the medicine in your eyes, nose, mouth, and vagina. If it gets in your eyes, rinse them well with water.

  • Children will need an adult to apply the medicine for them.

  • Shake the bottle well before using.

  • Topical application routeWash your hands with soap and water before and after you use this medicine.

  • Apply the medicine directly to dry hair. Start closest to the scalp and then apply outward. Completely cover your entire scalp and all of your hair, from roots to tips. Use the whole bottle of medicine, if needed.

  • Leave the medicine on the hair and scalp for 10 minutes.

  • After 10 minutes, rinse your hair with warm water only. Dry with a clean towel. Comb hair with a fine-toothed comb to remove any nits (eggs) or nit shells. They look like small white dots.

  • Read and follow the patient instructions that come with this medicine. Talk to your doctor or pharmacist if you have any questions.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

  • Leave the medicine on the hair and scalp for 10 minutes.

  • Shake the bottle well before using.

  • Topical application routeWash your hands with soap and water before and after you use this medicine.

  • After 10 minutes, rinse your hair with warm water only. Dry with a clean towel. Comb hair with a fine-toothed comb to remove any nits (eggs) or nit shells. They look like small white dots.

  • Use this medicine as directed on the hair and scalp only. Do not get the medicine in your eyes, nose, mouth, and vagina. If it gets in your eyes, rinse them well with water.

  • Children will need an adult to apply the medicine for them.

  • Apply the medicine directly to dry hair. Start closest to the scalp and then apply outward. Completely cover your entire scalp and all of your hair, from roots to tips. Use the whole bottle of medicine, if needed.

  • Read and follow the patient instructions that come with this medicine. Talk to your doctor or pharmacist if you have any questions.

What to do if you miss a dose of Natroba

Natroba contraindications

  • This medicine is generally considered safe for most people. Talk to your doctor if you have concerns.

Natroba warnings

  • Lice are easily spread from one person to another. To prevent the spread of lice, dry clean or wash your clothes, hats, and bedding in hot, soapy water. Dry in a hot dryer. Also wash personal care items such as brushes in hot, soapy water.

  • Do not use this medicine for a hair or scalp problem that has not been checked by your doctor.

  • Do not use this medicine on children younger than 6 months old because it contains benzyl alcohol which may cause serious reactions.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • Tell your doctor if you are pregnant or breastfeeding, or if you have any skin problems.

  • Check everyone in your household 7 days after treatment. If you find any live lice, tell your doctor.

Natroba interactions

  • Tell your doctor if you are pregnant or breastfeeding, or if you have any skin problems.

  • Do not use this medicine on children younger than 6 months old because it contains benzyl alcohol which may cause serious reactions.

  • Check everyone in your household 7 days after treatment. If you find any live lice, tell your doctor.

  • Lice are easily spread from one person to another. To prevent the spread of lice, dry clean or wash your clothes, hats, and bedding in hot, soapy water. Dry in a hot dryer. Also wash personal care items such as brushes in hot, soapy water.

  • Do not use this medicine for a hair or scalp problem that has not been checked by your doctor.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Natroba side effects

Serious Side Effects

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

Subscribe to our savings newsletter

Health education, drug info, wellness & more

By clicking 'Subscribe', I agree to SingleCare's Terms & Conditions.